Car-axle construction.



E. C. WAS N. CAB AXLE CONS ON.

ON mao APE 25.\919

1,285,504. I Patented Nov.19,1918..

FEG-L FIG.2.

CAR-AXLE CONSTRUCTION.

Applicaton filed April 25, 1918.

To all wlwm z't may concern:

Be it known that I, EDWIN C. WASEBURN, a ctizen of the United States, and a resdent of Englewood, in the county of Bergen and State of New Jersey, have invented an Improvement in Car-Axle Constructon, of whch the followng is a specification.

Ths invention relates to car axle construction. One of the objects thereof is to provide a constructon of the above type which shall be strong and dependable in use. Another object is to provide a constructon of the above nature which shall possess excellent wearng qualites wthout high cost. Another object is to provide a simple and practcal art whereby the life of car ax1es may be materially ncreased. Another object s to provide an art of the above nature whereby car axles may be made better to resist Wear. Other objects Will be in part obvous end in part ponted out hereinafter.

'Ihe nvention accordngly consists in the features of constructon, arrangement of parts and in the several steps and relaton of steps, all as Wll be'herein illustratvely described and set forth in the appended claims.

In the aocompanyng drawings, in Whch s shown one or more of various possble embodiments of the several mechancal features of this inventon,

Figure 1 s a longtudinal view of a portion of a car axle with a portion of a wheel partially out away in central longtudinal section; and

Fig. 2 is a smilar view of similar parts.

Similar reference characters refer to similar parts throughout both vews of the draw- Referring now to Fig. 1 of the drawings, there is shown one end porton of a car axle 1 which termnates in an annular portion 2. The axle is Provided With an extension or journal porton 3 which s preferab1y made of a superior grado of metal better adapted to resst wear than the body of the axle.

The extension or stub 3 s provided With a boss 4 which tghtly fits Within the annular portion 2 and the end of which rests eVen1y against the wall 5 formed by the body of the axle l. There s formed about this boss a shoulder 6 which meets the end of the annular portion 2 end brngs the.diameter Speoiflcation of Lettera Patent.

Patented. Nov.) 19, 1918.

Serial No. 230,623.

of the stub or extenson-up to that of the ma1n axle porton 2 fitting tightly against the latter.

The above parts are preferably assembled and secured in position as herenafter 1ater explaned.

With the stub and main axle assembled, the oar wheel 7 s forced over the joint as by hydraulic pressure and tghtly embraces the same, ading in holding the parts in place.

In the apparatus shown in Fig. 2, of the drawings, there s provided a hollow tubular axle 8 which may be formed of cast steel end s preferably of larger diameter than the usual solid axle, thus giving far'greater strength and stiffness Wth a given amount of metal.

The outer end 01 the ax1e is recessed or chambered as at 9, and tghtly fitted therein s a stub or extenson 10 whch may be formed of metal better adapted to resist wear than the body of the ax1e. This extension rests at its' n-ner end aganst the shoulder 11 formed by the body of the axle and with the parts assembled, the car wheel 12 s forced over the jont, thus adng in the strength of the connection.

In the use of car axles, the journal portion or that part projectng outwardly from the wheel, which, through the bearing and axle box supports the weight of the car, is subjected to Wear and in time becomes worn to such an extent that the contnued use of the axle in such condtion s nexpedent. T0 met this condition and avod waste, I have devsed an art or method which may be llustratively descrbed as follows:-

The -Wheel is wthdrawn from the axle and the latter out oi and bored out to provide an end construotion similar to that of the part 1, shown in Fig. 1 of the drawng. An extenson or stub s thereupon shaped substantally 1ke the part 3 of Fig. 1 of the drawing, the boss, however, beng o f a slghtly larger dameter than the openng or chamber into whch t s to fit. The axle s then heated to expand ts annular end porton, and the parts 1 and 3 assembled, whereupon the man axle s permtted to C001 and shrink about the boss formed 011 the stub. This .forms a rgd connection between the parts whch. is readly made.

Other methods of unon however, may be employed, although there are certan advantages in that above described.

Wth the parte; connected, the wheel 7 is forced as by hydraulic pressure over the joint into substantally the postion indicated in Fig. 1 of the drawng, a shoulder 13 being preferably provded to limt the nward movement of the wheel.

'It Wll' ths be seen thatby an art such' as that above descrbecl, the body 01: che ax1e s retaned instead of being scrapped, and that if in time the stub portion 3 became worn, notwthstanding its superior wearing qualtes, it could agan be readly replaced, resulting in a. marked economy of metal.

A1so in the resultant structure, due to the nterlockng relaton of the parts, there is provided an axle Whch is strong and well adapted to resst the conditions of practical use. Furthermore, vvthout material increase in cost, its wearing qualites are greatly ncreased. As various changes might be made in the above construction and as varations mght be made in the method of carrying on the above art, .a11

wthout departing from the essence 01: this nventon, t s to be understood 'chat 2111 matter heren descrbed or shown in the 210- companying dra.wn,q is to be interpreted as illustrative and not in a limitng sense.

I claim as my invention:

1. In car axle constructon, in combination, a Wheel hub, a main ax1e portion and a journal portion, sad portions having 2111 interfittng jont one With another wholly within said hub and each portion beimg so1id as t enters said hub.

2. In car axle constructon, in combination, a solid man ax1e portion provided with a recess at ts end and a journal portion fitted wthn sacl recess said journal ortion abuttng aganst sad ax1e porton to 1mit its longtudinal movement toward the same.

3. In car axle construction, in combina tion, a sold journal portion, a main ax1e porton embracng said journal portion, and a, wheel hub shapecl to grip directly both said journal porton and said axle portion.

4. In car axle constructon, in combinaton, a rnan axle porton and a journal portion, one of said parts being provided with a longtudinal recess and the other of said parts fitting said recess and resting against a bottom wa11 thereof.

5. In car axle constructon, in combinaton, a main axle porton, a journal porton, said main axle porton being provded at its end wth an annular extenson and sad jour 119.1 porton having formed thereon, a projectng pari: fittng withn sad extenson, and a s houlder resting againSt theend of sad eXtens0n.

6. In car 21x1e construction, in combination, a two-part ax1e, the external diameter 121011,.0-1Q of sad parts beng provided with 21l'ongitudnal reCess and the other Of sad parts fittng sad recess and resting against a bottom wall thereof, and a wheel embracing the joint between sad portons. 7

8. In car axle c0nstruction, in combinaton, a main axle porton and a journal porton, one of sad parts beng provided with a longitudnal recess and the other of sad parts fittng said recess -anc1 restng against a bottom wall thereof, the journal po'rtion of said axle beng ormed. ofa type of metal batter adapted to resist wear than the main I porton thereof.

9. In 0211 axle construction, in combination, so1id ax1e porton provded wth a. substantally cylindrcal recess at ts end, a j ournal portion fitted wthn sad recess and shapecl to lmit its longtudnal movement.

10. In car axle constructon, in combina" tion, a, wheel hub, a main axle portion provded with a recess, a journal portion fitted wthn sal recess and shaped to lmt its longtuclnal movement, and a whee1 hub embracing sad jont betwen said pbrtons, each of sad portons beng solid as it enters sad hub.

11. In cm axle constructon, in combinaton, a wheel hub a main axle porton provded wth a cylndrcal recess, a journal porton fitted Withn sad recess and shaped to ]mit ts longitudnal movement, and a wheel hub embracng sad j ont betw8n said portions, each of sail portons being solid as it enters sad hub and each of' said p0rtions being grp ped drectly by sad hub.

12. The art of renevving a worn axle which oonsists in cutting off ts journztl portion formirig a recess in the end of the ax1e porton, bringng a new journal potion nto sad recess in tightly gripped r'elaton thereto and forcing a whee1 over the jont between sad man axle portin and said new j ournal portion.

' 13. The art which consists in formng at the outer end of a main axle a longltudnal tecess, heating the portion withinwhich sad recess is formed, nsertng therein a relatvely 0001 journal portion, permtting the first porton to shrnk about the sanie, and forcing a car. whe el tightly over che jont between said portions.

14:. The art of renewing a worn axle Which consists in cufitng 011 the j ourna1 por-' gripped relation thereto and abutfiing against the game in a longitudinal direction and forcing a Wheel over the joint between said. main axle portion and said journal portion.

15. The art which comprises forming a socket in the end. of a main axle, providing a journal portion of a metal adapted to resst wear, fitting the same to snbstantally Copies f this patent may be obtained for five cents each, by addlessing the Commissione: ai Patents,

Washington, 1). G. 

